Sewage Map

Thames Lower sewage map and spill data

55 storm overflows listed in the 2025 annual return name this water. 2 companies operate them. Check the latest company report for each outlet below.

55
Outlet records
488
Spills in 2025
1,253
Recorded hours
50
Linked to a live feed

1 records have no usable spill count. 6 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.

Water companies on this water

Official waterbody record ↗How spills are countedSearch the national map

Outlets on Thames Lower

Filter by the latest company report. The map follows the filters.

Filters apply to the map and list. Recent stops need a current report and a recorded stop time. They do not show whether water is safe.

Showing 10 of 55 outlets

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  • Barrows Brook Eastchurch CEO - 108109

    Southern Water · Barrows Brook

    Current status unknown
    2025 annual record:8spills23.6hours
  • Benfleet Richmond Ave CSO

    Anglian Water · A Tributary of Benfleet Creek

    Current status unknown
    2025 annual record:2spills2hours
  • Benfleet STW

    Anglian Water · Benfleet Creek

    Current status unknown
    2025 annual record:14spills102.8hours
  • Canvey Island STW

    Anglian Water · Thames Estuary

    Current status unknown
    2025 annual record:26spills82.3hours
  • Canvey-Champlain Ave Sp

    Anglian Water · The Drain-DITCH Totidal Water

    Current status unknown
    2025 annual record:0spills0hours
  • Canvey-Dyke Cresc Ov

    Anglian Water · Hill Hall Dyke

    Current status unknown
    2025 annual record:14spills75hours
  • Canvey-Furtherwick Rd Sp

    Anglian Water · Trib River Thames

    Current status unknown
    2025 annual record:1spill4hours
  • Canvey-High St Sp

    Anglian Water · Knightswick Dyke

    Current status unknown
    2025 annual record:6spills32.5hours
  • Canvey-New Rd Sp

    Anglian Water · The Drain-DITCH to Tidal Water

    Current status unknown
    2025 annual record:3spills48hours
  • Canvey-Point Rd Sp

    Anglian Water · River Thames

    Current status unknown
    2025 annual record:1spill0.3hours

Most recorded spills in 2025

The highest 2025 counts among these outlets. A count is events, not volume or harm. Equal counts share a rank.

  1. 1
    Southend STW

    Anglian Water · monitor coverage 28%, below 90%

    94spills
  2. 2
    Southend-Shoebury Ness Rd Sp

    Anglian Water

    69spills
  3. 3
    S Benfleet-Whatlington Rd Tps

    Anglian Water

    45spills
  4. 4
    Canvey Island STW

    Anglian Water

    26spills
  5. 5
    Stanford Le Hope Broadhope PS

    Anglian Water

    21spills

Spills over time

The median outlet on Thames Lower recorded 4 spills in 2025, against 11 across England.

48 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 12 recorded more spills, 25 fewer and 11 the same. Together they went from 776 to 384 spills, a fall of 51%.

Largest rises from 2024 to 2025

YearOutlets with a countTotal spillsMedian per outletEngland median
202554488411
202455837519
2023264874.520
202218234513
20211639911.519
202014418

Earlier returns list fewer of these outlets, so totals are not comparable between years. The median per outlet and the like-for-like change are fairer comparisons. Counts are events, not volume.

All outlet records on Thames Lower

55 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.

B3 outlets
C8 outlets
G1 outlet
H2 outlets
N3 outlets
P1 outlet
S35 outlets
W2 outlets

Sources and dates

Outlet locations, waterbody links and spill figures come from the Environment Agency 2025 event duration monitoring annual return. The latest company reports come from each operator’s live feed and carry their own dates. Waterbody ID: GB530603911401. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Thames Lower

Which outlets are linked to Thames Lower?
The source links 55 outlet records to waterbody GB530603911401. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Thames Lower?
54 records report 488 spills in 2025 and 1,253 recorded hours. 1 records have no usable count. Outlets can discharge at the same time, so the hours are not the time the whole water was affected.
Who is responsible for the outlets on Thames Lower?
2 companies operate listed outlets: Anglian Water, Southern Water. Each outlet page names its operator and permit reference.
Which outlets on Thames Lower are linked to a live feed?
50 of the 55 records are matched to a monitor in a company live feed. A link does not mean the monitor is working now. Use the status filters above to see the latest report for each outlet, with its date. The rest show annual figures only.
How complete is the monitoring for Thames Lower?
6 of the listed records have monitor operation below 90% for 2025. Events can be missed when a monitor is not working, so low counts from those outlets may understate activity.
Does this show if Thames Lower is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.